package net.minecraft.command.server;

import com.google.gson.JsonParseException;
import java.util.List;
import net.minecraft.command.CommandBase;
import net.minecraft.command.CommandException;
import net.minecraft.command.ICommandSender;
import net.minecraft.command.SyntaxErrorException;
import net.minecraft.command.WrongUsageException;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.BlockPos;
import net.minecraft.util.ChatComponentProcessor;
import net.minecraft.util.IChatComponent;
import org.apache.commons.lang3.exception.ExceptionUtils;

public class CommandMessageRaw extends CommandBase {
	/**
	 * Gets the name of the command
	 */
	public String getCommandName() {
		return "tellraw";
	}

	/**
	 * Return the required permission level for this command.
	 */
	public int getRequiredPermissionLevel() {
		return 2;
	}

	/**
	 * Gets the usage string for the command.
	 */
	public String getCommandUsage(ICommandSender sender) {
		return "commands.tellraw.usage";
	}

	/**
	 * Callback when the command is invoked
	 */
	public void processCommand(ICommandSender sender, String[] args) throws CommandException {
		if (args.length < 2) {
			throw new WrongUsageException("commands.tellraw.usage", new Object[0]);
		} else {
			EntityPlayer entityplayer = getPlayer(sender, args[0]);
			String s = buildString(args, 1);

			try {
				IChatComponent ichatcomponent = IChatComponent.Serializer.jsonToComponent(s);
				entityplayer
						.addChatMessage(ChatComponentProcessor.processComponent(sender, ichatcomponent, entityplayer));
			} catch (JsonParseException jsonparseexception) {
				Throwable throwable = ExceptionUtils.getRootCause(jsonparseexception);
				throw new SyntaxErrorException("commands.tellraw.jsonException",
						new Object[] { throwable == null ? "" : throwable.getMessage() });
			}
		}
	}

	public List<String> addTabCompletionOptions(ICommandSender sender, String[] args, BlockPos pos) {
		return args.length == 1 ? getListOfStringsMatchingLastWord(args, MinecraftServer.getServer().getAllUsernames())
				: null;
	}

	/**
	 * Return whether the specified command parameter index is a username parameter.
	 */
	public boolean isUsernameIndex(String[] args, int index) {
		return index == 0;
	}
}
